Language specification

Objects

Comment

• .........

String

• “text text text”

Number

• 42.3
• 42

Bool

• yes
• no

Void

• void

Eof

• eof

List

• [ 1 2 3 “a” [ 5 6 ] yes no 42 ]

Closure

• = cl { ... }
• cl # execute

Arguments list

• args

Basic operations

Compare

• == 5 3
• == “a” “b”
• == eof “eof”
• == [ 1 2 3 ] [ 1 2 3 ]

• = 1 2

• <= 1 2
• < 1 2

• 1 2

Assign

• = b 1
• += b 2
• -= b 3
• *= b 4
• /= b 5
• = a b

Arithmetic

• • 1 2
• • 1 2
• • 1 2
• / 1 2

Logic

• and yes no
• or yes no
• not yes

Append

• • “abcd” “e”
• • [ “a” “b” “c” 1 2 3 ] “e”
• • “abcde” “efgh”
• • [ “a” “b” “c” 1 2 3 ] [ 5 6 7 “g” ]

Size

• size “abc”
• size [ 1 2 “abc” ]

At

• at “abc” 2
• at [ 1 2 “abc” ] 1

Push

• push list 42

Pop

• pop list

I/O

Print - any object

• print “abc”

Open file

• = f open “/path/file.txt”

Write

• write f “text text text”
• write open “/path/file.txt” “text text text”

Read line

• read f

Control flow

Return

• return 5
• return void

If-Else

• if == 10 20 ( … )
• if yes ( print “a” ) else ( ... )

Loop

• loop ( … )

End Loop

• loop ( … if == 1 1 ( end ) )

User functions

Function def - last call of block is result

• func func_name arg1_id … arnN_id ( … )

Function call

• func_name arg1 … argN